Install Instructions

5
NOTE: The Commonwealth of Massachusetts requires that the
following additional requirements must also be met:
• Gas furnaces must be installed by a licensed plumber or
gas fitter.
• A T-handle gas cock must be used.
• If the unit is to be installed in an attic, the passageway
to and the service area around the unit must have
flooring.
To ensure proper furnace operation, install, operate and
maintain the furnace in accordance with these installation
and operation instructions, all local building codes and or-
dinances. In their absence, follow the latest edition of the
National Fuel Gas Code (NFPA 54/ANSI Z223.1), and/or CAN/
CSA B149.1-15 Installation Codes, local plumbing or waste
water codes, and other applicable codes.
A copy of the National Fuel Gas Code (NFPA 54/ANSI Z223.1)
can be obtained from any of the following:
American National Standards Institute
25 West 43rd Street, 4th Floor
New York, NY 10036
National Fire Protection Association
1 Batterymarch Park
Quincy, MA 02169-7471
CSA International
8501 East Pleasant Valley
Independence, OH 44131
The rated heating capacity of the furnace should be greater
than or equal to the total heat loss of the area to be heated.
The total heat loss should be calculated by an approved method
or in accordance with “ASHRAE Guide” or “Manual J-Load
Calculations” published by the Air Conditioning Contractors of
America.
A copy of the CAN/CSA B149.1-15 Installation Codes can
also be obtained from:
CSA International
178 Rexdale Boulevard
Etobicoke, Ontario, Canada M9W 1R3
L OCATION R EQUIREMENTS & C ONSIDERATIONS
Follow the instructions listed below and the guidelines
provided in the Combustion and Ventilation Air Require-
ments section when selecting a furnace location.
T O PREVENT POSSIBLE EQUIPMENT DAMAGE , PROPERTY DAMAGE ,
PERSONAL INJURY OR DEATH , THE FOLLOWING BULLET POINTS MUST BE
OBSERVED WHEN INSTALLING THIS UNIT .
WARNING
P OSSIBLE PROPERTY DAMAGE , PERSONAL INJURY OR DEATH DUE TO
FIRE , EXPLOSION , SMOKE , SOOT , CONDENSATION , ELECTRICAL SHOCK
OR CARBON MONOXIDE MAY RESULT FROM IMPROPER INSTALLATION ,
REPAIR OPERATION , OR MAINTENANCE OF THIS PRODUCT .
WARNING
• Centrally locate the furnace with respect to the
proposed or existing air distribution system.
• Ensure the temperature of the return air entering
the furnace is between 55°F and 100°F when the
furnace is heating.
• Provide provisions for venting combustion products
outdoors through a proper venting system. Special
consideration should be given to vent/flue pipe
routing and combustion air intake pipe when
applicable. Refer to Vent/Flue Pipe and Combustion
Air Pipe -Termination Locations for appropriate
termination locations and to determine if the piping
system from furnace to termination can be
accomplished within the guidelines given. NOTE:
The length of flue and/or combustion air piping can
be a limiting factor in the location of the furnace.
• Locate the furnace so condensate flows downwards
to the drain. Do not locate the furnace or its
condensate drainage system in any area subject to
below freezing temperatures without proper freeze
protection. Refer to Condensate Drain Lines and
Trap for further details.
• Ensure adequate combustion air is available for the
furnace. Improper or insufficient combustion air
can expose building occupants to gas combustion
products that could include carbon monoxide. Refer
to Combustion and Ventilation Air Requirements.
• Set the furnace on a level floor to enable proper
condensate drainage. If the floor becomes wet or
damp at times, place the furnace above the floor
on a concrete base sized approximately 1-1/2" larger
than the base of the furnace. Refer to the Horizontal
Applications and Considerations for leveling of
horizontal furnaces.
• Ensure upflow or horizontal furnaces are not
installed directly on carpeting, or any other
combustible material. The only combustible
material allowed is wood.
• A special accessory subbase must be used for upright
counterflow unit installations over any combustible
material (including wood). Refer to subbase
instructions for installation details. (NOTE: A subbase
will not be required if an air conditioning coil is located
beneath the furnace between the supply air opening
and the combustible floor.
• Exposure to contaminated combustion air will result
in safety and performance-related problems. Do
not install the furnace where the combustion air is
exposed to the following substances:
- permanent wave solutions
- cleaning solutions (such as perchloroethylene)
- printing inks
- chlorinated waxes or cleaners
- paint removers
- chlorine-based swimming pool chemicals
- varnishes
- water softening chemicals